文献类型：期刊文献

英文题名：Subtropical vegetation damage and recovery dynamics after the great 2008 Chinese ice storm

作者：Xiong, Yujiu[1,2] Yan, Wenjie[1] Wang, Xu[3,4] Luo, Yong[5] Feng, Hanhua[5] Zhao, Wenli[6,7] Zhu, Biqing[8] Ye, Zhenhua[9] Li, Hao[9]

第一作者：Xiong, Yujiu

通信作者：Wang, X[1];Wang, X[2]

机构：[1]Sun Yat Sen Univ, Sch Civil Engn, Zhuhai 519082, Guangdong, Peoples R China;[2]Sun Yat Sen Univ, Guangdong Engn Technol Res Ctr Water Secur Regulat, Guangzhou 510275, Peoples R China;[3]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Peoples R China;[4]Beijiangyuan Natl Forest Ecosyst Res Stn, Guangzhou 510520, Peoples R China;[5]Guangdong Forestry Survey & Planning Inst, Guangzhou 510520, Peoples R China;[6]Columbia Univ, Dept Earth & Environm Engn, New York, NY 10027 USA;[7]Max Planck Inst Biogeochem, Jena, Germany;[8]Int Inst Appl Syst Anal IIASA, Vienna, Austria;[9]Guangzhou Inst Forestry & Landscape architecture, Guangzhou 510405, Peoples R China

年份：2025

卷号：372

外文期刊名：AGRICULTURAL AND FOREST METEOROLOGY

收录：;Scopus(收录号：2-s2.0-105007649891);WOS:【SCI-EXPANDED(收录号:WOS:001508502600001)】；

基金：Y.J. Xiong gratefully acknowledges the financial support from the National Natural Science Foundation of China (42071395) . Y. Luo gratefully acknowledges the financial support from the Technology Innovation Program from Forestry Administration of Guangdong Prov-ince (2024KJCX008) . We thank Jianing Fang at Columbia University for editing language and providing suggestions. We also thank Zhongmin Wu at Research Institute of Tropical Forestry, Chinese Academy of Forestry for providing plant damage information of the Pearl River Delta. We are grateful to the reviewers and editor for their insightful and constructive comments.

语种：英文

外文关键词：Extreme climate event; Subtropical ecosystem; EVI; GPP; Nanling mountain region; Guangdong

摘要：In early 2008, an extreme ice storm struck southern China, including the subtropical Guangdong Province, causing substantial ecological damage and economic losses. Previous evaluations of vegetation damage during this event primarily focused on the immediate physical structure damage caused by ice, overlooking the delayed physiological damage from extreme low-temperature stress, especially in adjacent non-frozen regions. Combining remotely-sensed (i.e., MODIS Gross Primary Productivity (GPP) and Enhanced Vegetation index (EVI)) and in-situ data, we conducted a more complete assessment of subtropical vegetation damage and recovery following the 2008 Chinese ice storm by considering time-lag effects. We found vegetation damage and subsequent recovery exhibited distinct spatial patterns correlated to ice storm severity. Assessments that accounted for time-lag effects were more aligned with ground truth, revealing that vegetation damage signal typically lagged the event onset by 1-2 months. The time-lag effect showed distinct patterns in non-frozen regions experiencing secondary low-temperature stress (without direct ice storm exposure). Physiological damage dominated these areas, reducing GPP by 62 %. In contrast, physical structural damage caused a comparatively smaller decline (51 %) in EVI. We also found a positive correlation between frozen time and the severity of vegetation damage, with 37 % of vegetation damaged in less frozen zone versus 70 % in severe frozen zone. Subsequent recovery of GPP and EVI to pre-ice storm conditions took 4-9 months, with GPP recovering faster than EVI, especially in severe frozen forests. Such positive correlation also existed between damage severity (or recovery time) and elevation and slope, but the pattern varied across different freezing zones. Our findings highlight the delayed physiological damage from extreme low-temperature stress and provide new insights into subtropical vegetation dynamics following extreme ice storms.